2011, Germany, Russia, Kazakhstan
Veit Helmer
2014, Hungary
Gábor Reisz
2008, Germany
1998, Austria
Valentin Hitz
2017, Estonia, Netherlands, Poland
Rainer Sarnet
2018, Germany, Azerbaijan
2015, France
Pierre Léon
2016, Brazil
Cláudia Jouvin
2014, France
Thomas Salvador
1999, Germany
2015, Bulgaria
Ivaylo Hristov
2018, Romania, Bulgaria
Paul Negoescu